The Intersil HS-26CT32RH, HS-26CT32EH are differential line receivers designed for digital data transmission over balanced lines and meets the requirements of EIA standard RS-422. Radiation hardened CMOS processing assures low power consumption, High-Speed, and reliable operation in the most severe radiation environments. The HS-26CT32RH, HS-26CT32EH have an input sensitivity typically of 200mV over the common mode input voltage range of ±7V. The receivers are also equipped with input fail safe circuitry, which causes the outputs to go to a logic “1” when the inputs are open. Enable and Disable functions are common to all four receivers. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed in the “Ordering Information” must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-95631.


  • Electrically Screened to SMD # 5962-95631
  • QML qualified per MIL-PRF-38535 requirements
  • 1.2 Micron radiation hardened CMOS
  • Total dose: Up to 300kRAD(Si)
  • Latch-up free
  • EIA RS-422 compatible outputs
  • Operation with TTL based on VIH = VDD/2
  • Input fail safe circuitry
  • High impedance inputs when disabled or powered down
  • Low power dissipation standby (Max): 138mW
  • Single 5V supply
  • Full Military temperature range: -55°C to +125°C


  • Line Receiver for MIL-STD-1553 Serial Data Bus
  • Line Receiver for RS422

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active 100
Active SBDIP Tube 1
Active CFP Tray 1

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
HS-26CT32RH, HS-26CT32EH Datasheet Datasheet PDF 247 KB
HS-26CT32RH-T Datasheet Datasheet PDF 245 KB
Application Notes & White Papers
Wafer by Wafer Low Dose Rate Acceptance White Paper White Paper PDF 533 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
AN9654: Use of Life Tested Parts Application Note PDF 224 KB
AN9520: Using the HS-26C(T)32RH Radiation Hardened RS-422 Line Receiver Application Note PDF 259 KB
HS-26CT32EH, HS-26CT32RH IBIS Model Model IBS 38 KB
Intersil Space Products Brochure Brochure PDF 3.14 MB
PIN19011 - Price Increase for the Listed Renesas Electronics America (REA) Radiation Hardened Space Products Price Increase Notice PDF 360 KB
Standard Microcircuit Drawing 5962-95631 (HS-26CT32EH, HS-26CT32RH) Other 0 KB
Intersil Commercial Lab Services Brochure PDF 364 KB
TB399: LET Threshold for SEU of the HS-26C(T)32RH Operating in Failsafe Mode Other PDF 141 KB

News & Additional Resources